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idle problem 

 

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 Post subject: idle problem
Posted: Tue Jul 12, 2011 7:21 am 
Parts Gopher
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Location: sydney
NSW, Australia

the car is a 95 ef falcon no mods have been done

as of late i have been getting this high idle problem

the isc valve has been cleaned
throttle body has been cleaned
new spark plug leads and spark plugs have been done

i tryed finding a vac leak but i couldn't find one
the map sensor seems to be working like when you unplug it the engine stalls

it will rev just over 1000rpm then drop back done to 650 for a sec after i gave it a rev and it happens when driving to when you come to a complete stop

i just dont know whats wrong with it and it seems to be running rough so i can't think of anything else

here is a vid
http://s255.photobucket.com/albums/hh15 ... I_6581.mp4
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 Post subject: Re: idle problem
Posted: Tue Jul 12, 2011 12:14 pm 
Getting Side Ways
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Age: 33

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Ride: 97 EL XR6

Power: 162 rwkw

Location: liverpool
NSW, Australia

check the TPS on the throttle body....

 

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 Post subject: Re: idle problem
Posted: Tue Jul 12, 2011 5:34 pm 
Parts Gopher
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Location: sydney
NSW, Australia

my tps was sitting on .94 then i adjusted it and only could get it to .97 so i assume i may need a new one
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 Post subject: Re: idle problem
Posted: Tue Jul 12, 2011 5:37 pm 
Getting Side Ways
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Age: 33

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Joined: 26th Apr 2006

Gallery: 6 images

Ride: 97 EL XR6

Power: 162 rwkw

Location: liverpool
NSW, Australia

try drilling out the 2 fixing holes, this will allow you to rotate the TPS a little for adjustment. once the voltage is right, tighten up the screws....

 

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 Post subject: Re: idle problem
Posted: Tue Jul 12, 2011 5:45 pm 
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Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

first up. unplug the isc and start the car... if it idles over 600rpm your base idle is to high..
adjust your idle without the isc connected so it idles at aprox 550-600rpm,
then plug the isc back in and start the car...

otherwise just replace the tps.. you can drill it to adjust it but your full throttle value will then be out of range
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 Post subject: Re: idle problem
Posted: Wed Jul 13, 2011 5:49 pm 
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Location: sydney
NSW, Australia

i tryed that and the dam thing keeps stalling
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 Post subject: Re: idle problem
Posted: Wed Jul 13, 2011 7:32 pm 
Parts Gopher
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Ride: fairlane ute

Location: wodonga
VIC, Australia

just fixed a very similar problem, leaking fuel injectors and a faulty HEGO was my culprit. If you drive for a while then stop and start the car shortly after does it bog down a bit?
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 Post subject: Re: idle problem
Posted: Wed Jul 13, 2011 10:22 pm 
Parts Gopher
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Location: sydney
NSW, Australia

no it doesn't bog down whats a hego

if its the headgasket you mean well that got done 4 years ago after the 4th time till we found the cause of why it did it and it was a blocked radiator after i replaced the radiator with a new i havn't had a problem since

i stuck the timing light on and i need a new bottem pully
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 Post subject: Re: idle problem
Posted: Wed Jul 13, 2011 10:24 pm 
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Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

hego= heated exhaust gas oxigene/ 02 sensor
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 Post subject: Re: idle problem
Posted: Thu Jul 14, 2011 6:14 am 
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Location: sydney
NSW, Australia

oh yeah the o2 sensor has been replaced and im still getting s**t fuel consumption at 15l per 100 km im lucky to get 450 out of a tank and this is on a wagon i was thinking of stripping down the intake soon when i get the other car back on the road
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 Post subject: Re: idle problem
Posted: Thu Jul 14, 2011 2:56 pm 
Fordmods Junkie
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Ride: EL Fairmont, VFR400 racer

Power: 144 rwkw

Location: Melbourne
VIC, Australia

Vacuum leak? can cause idle issue, high fuel consumption and rough idle. Is there a slight hissing sound in the cabin? If so you might have a vacuum leak at the vacuum distribution box thingy that controls the vents...located behind and under the glove box.

 

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 Post subject: Re: idle problem
Posted: Thu Jul 14, 2011 5:02 pm 
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Location: sydney
NSW, Australia

the only slight hissing noise i get is when i change the controls on the vent from face to feet for the cooler controls
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 Post subject: Re: idle problem
Posted: Fri Jul 15, 2011 3:00 am 
Stock as a Rock
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Ride: 97 el ghia

Location: Newcastle
NSW, Australia

might just need a tune.

take off the battery leads for 10 minutes put them on then drive up and down a straight stretch of road for 20min-1hr try not to stop might fix the problem

 

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 Post subject: Re: idle problem
Posted: Sat Jul 16, 2011 1:26 pm 
Parts Gopher
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Location: sydney
NSW, Australia

i just try the base idle with the isc off

it keeps stalling on me

when i changed the vent controls from feet to face there is a hissing noise but it goes away
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 Post subject: Re: idle problem
Posted: Sat Jul 16, 2011 1:27 pm 
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Location: sydney
NSW, Australia

maso1988 wrote:
might just need a tune.

take off the battery leads for 10 minutes put them on then drive up and down a straight stretch of road for 20min-1hr try not to stop might fix the problem



i did that heaps of times and it hasn't fixed the problem
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